The vegtrugamptrade vegetable planters are all fitted with a pre45formed liner to protect your wooden planter from the effects of damp soil but replacement liners are available for when you need to replace the old one due to wear and tear they are manufactured from durable black polyethylene fabric which forms a protective membrane retaining soil but allowing it to drain and aerateavailable in 3 sizesmini replacement liner vegtrugamptrade product dimensionswidth 75cm depth 72cm